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Now showing items 141-150 of 150
التسعير بين القانون القطري والمنظور الإسلامي
(
كلية العلوم الإنسانية والاجتماعية
, 1999 , Article)
فقد شرع الله البيع توسعة منه على عباده فقال تعالى (واحل الله البيع وحرم الربا، وهذا ما أكده رسول الله (صلى الله عليه وسلم) عندما سّئل عن أطيب الكسب، فقال : «عمل الرجل بيده , وكل بيع مبرور».
وكما هو معروف أن لكل فرد من ...
Bacteremia and septicemia in Qatar
(
Ministry of Defence And Aviation
, 1999 , Article)
Objectives: The aims of the study are to define the pattern of bacteremia and septicemia in Hamad Medical Corporation in relation to the susceptibility of the implicated microbes to various antimicrobial agents. Methods: ...
المشكلات التي تواجه معلمي ومعلمات التربية الرياضية في دولة قطر
(
Qatar University
, 1999 , Article)
Speed control of induction motor without rotational transducers
(
IEEE
, 1999 , Article)
This paper describes a newly developed speed sensorless drive based on neural networks. A backpropagation neural network is used to provide real-time adaptive identification of the motor speed. The estimation objective is ...
Use of Mathcad as a teaching and learning tool for reinforced concrete design of footings
(
John Wiley & Sons, Inc.
, 1999 , Article)
Owing to their nature, numerous and complex equations are commonly used in the design of reinforced concrete structures. This is because of the nature of reinforced concrete design. Mathcad, which possesses efficient ...
Optimization of the skew angle of rotor poles in permanent magnet machines based on the inverse problem method
(
IEEE
, 1999 , Article)
This paper presents optimization of the skew angle of rotor magnetic poles in permanent magnet brushless dc machines. The skew angle optimization is achieved using the gradient based inverse problem methodology. The paper ...
Solid-state planar microsensors for selective potentiometric determination of ethylmorphine
(
Marcel Dekker Inc.
, 1999 , Article)
The potentiometric performance characteristics of microelectronically fabricated solid-state planar ethylmorphine sensors based on silicon/silicon nitride substrate and a mixture of ethylmorphine-tetraphenylborate and ...
A comparison of the macrofauna of natural and replanted mangroves in Qatar
(
Academic Press
, 1999 , Article)
The present investigation quantifies the biodiversity of the Brachyura and fish living within the natural mangrove Avicennia marina, salt marsh find replanted mangal, and compares relevant features of the abiotic and biotic ...
Beach tar contamination on the Qatari coastline of the Gulf
(
Elsevier
, 1999 , Article)
Beach tar concentrations were measured along the Qatari coastlines. Tar concentrations, collected from 11 locations, varied in space and time with values ranging between 2 and 1132 g m−1 (average 290 g m−1) of beach front. ...
Study on ferroelastic characteristics of gamma irradiated lithium potassium sulfate crystal
(
Elsevier
, 1999 , Article)
A detailed study of the optical absorption vs. γ-irradiation dose for lithium potassium sulfate crystal, LiKSO4 cut out perpendicular to x, y and z directions is presented. The optical density was measured within the ...